Results 21 to 30 of about 328,621 (294)

Evaluation of Landsat-8 and Sentinel-2A Aerosol Optical Depth Retrievals Across Chinese Cities and Implications for Medium Spatial Resolution Urban Aerosol Monitoring [PDF]

open access: yes, 2019
In urban environments, aerosol distributions may change rapidly due to building and transport infrastructure and human population density variations.
Huang, Haiyan   +4 more
core   +2 more sources

Satellite monitoring of chlorophyll-a threshold levels during an exceptional cyanobacterial bloom (2018-2019) in the Río de la Plata

open access: yesRibagua, 2023
The Río de la Plata estuary, located in southeast South America, is of great social and environmental relevance for the region. In the summer of 2018–2019, an exceptional cyanobacterial bloom was detected along the northern coast of the estuary, which ...
Fernanda P. Maciel   +4 more
doaj   +1 more source

Assessment of the Added-Value of Sentinel-2 for Detecting Built-up Areas [PDF]

open access: yes, 2016
Monitoring of the human-induced changes and the availability of reliable and methodologically consistent urban area maps are essential to support sustainable urban development on a global scale.
CORBAN Christina   +5 more
core   +1 more source

Estimating the Changes in the Agricultural Lands Using Satellite Images Case Study: Fariman Dam Downstream Basin [PDF]

open access: yesمجله آب و خاک
IntroductionLimited fresh water resources and access to these resources as well as providing food security for the growing world population have led researchers to make extensive efforts in the field of optimal management of water consumption and ...
A. Noori   +5 more
doaj   +1 more source

MONITORING THE CROPS PHENOLOGY USING TIME SERIES SENTINEL 2 IMAGES [PDF]

open access: yesActa Geobalcanica, 2020
It is important to know the beginning and the end of the growing season at the plot level, in order to understand the dynamics of crops and agricultural systems, but also to know the phenological values related to the crop calendar.
Iuliana Gabriela Breaban   +1 more
doaj   +1 more source

ESTIMATION OF SOIL MOISTURE USING SENTINEL-1 AND SENTINEL-2 IMAGES [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Soil moisture is a vital parameter for environmental research such as agriculture, hydrology, natural resources, environmental hazards, etc. It is essential to have timely soil moisture maps prepared with high accuracy, speed, and low cost. Therefore, in
R. Esmaeili Sarteshnizi   +2 more
doaj   +1 more source

Optimal Exploitation of the Sentinel-2 Spectral Capabilities for Crop Leaf Area Index Mapping [PDF]

open access: yes, 2012
The continuously increasing demand of accurate quantitative high quality information on land surface properties will be faced by a new generation of environmental Earth observation (EO) missions.
D'Urso, Guido   +4 more
core   +2 more sources

How pharmacoepidemiology networks can manage distributed analyses to improve replicability and transparency and minimize bias [PDF]

open access: yes, 2020
Several pharmacoepidemiology networks have been developed over the past decade that use a distributed approach, implementing the same analysis at multiple data sites, to preserve privacy and minimize data sharing.
Brown, Jeffrey S.   +5 more
core   +2 more sources

Machine Learning Techniques for Land Use/Land Cover Classification of Medium Resolution Optical Satellite Imagery Focusing on Temporary Inundated Areas

open access: yesJournal of Environmental Geography, 2020
Classification of multispectral optical satellite data using machine learning techniques to derive land use/land cover thematic data is important for many applications.
van Leeuwen Boudewijn   +2 more
doaj   +1 more source

Effectiveness of Sentinel-1 and Sentinel-2 for Flood Detection Assessment in Europe [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2022
Abstract. Inundation is one of the major natural hazards in Europe. The evaluation of the flood hazard and risk is not straightforward mainly due to the monitoring system that is poor or not uniformly distributed in the territory. The ESA Earth Observation Program, including a series of satellites, Sentinels, for the operative observation of the ...
Tarpanelli Angelica   +2 more
openaire   +4 more sources

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